→ Meat
                    
                      
                        01 - 
                        2 pounds top sirloin steak or ribeye, trimmed and sliced very thin
                      
                    
                  
                    → Oils and Fats
                    
                      
                        02 - 
                        2 tablespoons vegetable oil, divided
                      
                    
                      
                        03 - 
                        4 tablespoons butter, softened
                      
                    
                      
                        04 - 
                        4 tablespoons mayonnaise
                      
                    
                  
                    → Dairy
                    
                      
                        05 - 
                        8 slices mild provolone cheese
                      
                    
                  
                    → Bread
                    
                      
                        06 - 
                        4 hoagie rolls, sliced through
                      
                    
                  
                    → Vegetables
                    
                      
                        07 - 
                        4 oz sliced mushrooms
                      
                    
                      
                        08 - 
                        1 large yellow onion, chopped
                      
                    
                      
                        09 - 
                        1 green bell pepper
                      
                    
                      
                        10 - 
                        1 red bell pepper
                      
                    
                  
                    → Seasonings
                    
                      
                        11 - 
                        1/2 teaspoon minced garlic
                      
                    
                      
                        12 - 
                        2 teaspoons coarse Kosher salt, or to taste
                      
                    
                      
                        13 - 
                        1/2 teaspoon black pepper, or to taste